#include <asm/addrspace.h>
#include <asm/io.h>
-struct dma_coherent_mem {
- void *virt_base;
- u32 device_base;
- int size;
- int flags;
- unsigned long *bitmap;
-};
-
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp)
{
void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle)
{
- struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL;
int order = get_order(size);
if (!dma_release_from_coherent(dev, order, vaddr)) {
WARN_ON(irqs_disabled()); /* for portability */
- BUG_ON(mem && mem->flags & DMA_MEMORY_EXCLUSIVE);
free_pages((unsigned long)phys_to_virt(dma_handle), order);
iounmap(vaddr);
}